<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch
                        v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                    <!-- <template> -->
                        <el-tooltip effect="dark" content="修改信息" placement="top" :enterable="false">
                            <!-- 修改按钮 -->
                            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        </el-tooltip>
                        <el-tooltip effect="dark" content="删除信息" placement="top" :enterable="false">
                            <!-- 删除按钮 -->
                            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        </el-tooltip>
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <!-- 分配角色按钮 -->
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2,5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
            </el-pagination>
        </el-card>
        <!-- 用户列表对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
       <!-- 内容主体区 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区 -->
            <template #footer>
                <span class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
                </span>
            </template>
        </el-dialog>
        <!-- 修改用户对话框 -->
        <el-dialog
        title="修改用户信息"
        :visible.sync="editDialogVisible"
        width="50%" @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username"  disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <template #footer>
                <span class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
            </template>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog
        title="分配角色对话框"
        :visible.sync="setRoleDialogVisible"
        width="50%" @close="setRoleDialogClosed">
            <div>
                <p>当前用户：{{userInfo.username}}</p>
                <p>当前角色：{{userInfo.role_name}}</p>
                <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <template #footer>
                <span class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
                </span>
            </template>
        </el-dialog>
    </div>
</template>
<script>
export default{
    data(){
        var checkEmail=(rule,value,cb)=>{
            //校验邮箱的正则表达式
            const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
            if(regEmail.test(value)){
                return cb();
            }
            cb(new Error('请输入合法的邮箱'));
        }
        var checkMobile=(rule,value,cb)=>{
            //校验手机号的正则表达式
            const regMobile=/^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;                        
            if(regMobile.test(value)){
                return cb();
            }
            cb(new Error('请输入合法的手机号'));
        }
        return{
            // 获取用户列表数据
            queryInfo:{
                query:'',
                //当前页数
                pagenum:1,
                //当前页面显示多少数据
                pagesize:2
            },
            userlist:[],
            total:0,
            // 控制用户对话框的显示和隐藏
            addDialogVisible:false,
            //控制修改用户对话框的显示与隐藏
            editDialogVisible:false,
            //控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            //需要被分配角色的用户信息
            userInfo:{},
            //所有角色的数据列表
            rolesList:[],
            //查询到的用户信息对象
            //已选中的id值
            selectedRoleId:'',
            editForm:{},
            // 修改表单的验证规则对象
            editFormRules:{
                email:[
                    {
                        required:true,message:'请输入邮箱地址',trigger:'blur'
                    },{
                        validator:checkEmail,trigger:'blur'
                    }
                ],
                mobile:[
                    {
                        required:true,message:'请输入手机号',trigger:'blur'
                    },{
                        validator:checkMobile,trigger:'blur'
                    }
                ]
            },
            //添加表单用户数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            //添加表单的验证规则对象
            addFormRules:{
                username:[
                    {
                        required:true,message:'请输入用户名',trigger:'blur'
                    },
                    {
                        min:3,
                        max:10,
                        message:'用户名长度在3~10个字符之间',
                        trigger:'blur'
                    }
                ],
                 password:[
                    {
                        required:true,message:'请输入密码',trigger:'blur'
                    },
                    {
                        min:6,
                        max:15,
                        message:'密码长度在6~15个字符之间',
                        trigger:'blur'
                    }
                ],
                email:[
                    {
                        required:true,message:'请输入邮箱地址',trigger:'blur'
                    },{
                        validator:checkEmail,trigger:'blur'
                    }
                ],
                mobile:[
                    {
                        required:true,message:'请输入手机号',trigger:'blur'
                    },{
                        validator:checkMobile,trigger:'blur'
                    }
                ]
            }
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data:res}=await this.$http.get('users',{params:this.queryInfo})
            // console.log(res);
            if(res.meta.status!==200){
                return this.$message.error('获取用户列表失败!');
            }
            this.userlist=res.data.users;
            this.total=res.data.total;
            // console.log(this.userlist);
        },
        //监听pageSize改变的事件
        handleSizeChange(newSize){
            // console.log(newSize);
            this.queryInfo.pagesize=newSize;
            this.getUserList()
        },
        //监听页码值改变的事件
        handleCurrentChange(newPage){
            // console.log(newPage);
            this.queryInfo.pagenum=newPage;
            this.getUserList();
        },
        //监听switch开关状态的改变
        async userStateChange(userinfo){
            // console.log(userinfo);
          const {data:res}= await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
          if(res.meta.status!==200){
              userinfo.mg_state=!userinfo.mg_state;
              return this.$message.error('更新用户状态失败');
          }
          this.$message.success('更新用户状态成功');
        },
        // 监听用户列表对话框关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                if(!valid) return;
                //可以发起添加用户请求
               const {data:res}=await this.$http.post('users',this.addForm);
                if(res.meta.status!==201){
                    this.$message.error('添加用户失败');
                }
                this.$message.success('添加用户成功');
                //隐藏添加用户对话框
                this.addDialogVisible=false;
                //重新获取用户列表数据
                this.getUserList();
            })
        },
        //展示编辑用户对话框
        async showEditDialog(id){
            // console.log(id);
            const {data:res}=await this.$http.get('users/'+id)
            if(res.meta.status!==200){
                return this.$message.error('查询用户信息失败')
            }
            this.editForm=res.data
            this.editDialogVisible=true
        },
        //监听修改用户信息关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        //修改用户信息列表提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                // console.log(valid);
                if(!valid) return
                //发起修改用户信息的数据请求
            const {data:res}=await this.$http.put('users/'+this.editForm.id,{
                email:this.editForm.email,
                mobile:this.editForm.mobile
            })
            if(res.meta.status!==200){
                return this.$message.error('更新用户数据失败')
            }
            //关闭对话框
            this.editDialogVisible = false
            //更新数据列表
            this.getUserList()
            //提示修改成功
            this.$message.success('更新用户数据成功')
            })
        },
        //根据id删除对应的用户信息
        async removeUserById(id){
            // 弹框询问用户是否删除数据
            const confirmResult =await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err=>err)
            //如果用户确认删除，则返回值是confirm
            //如果用户取消了删除，则返回值为concel
            // console.log(confirmResult);
            if(confirmResult!=='confirm'){
                return this.$message.info('已取消了删除')
            }
            const {data:res}=await this.$http.delete('users/'+id)
            if(res.meta.status!==200){
                return this.$message.error('删除用户失败')
            }
            this.$message.success('删除用户成功')
            this.getUserList()
        },
        //展示分配角色的对话框
        async setRole(userInfo){
            // console.log(userInfo);
            this.userInfo=userInfo

            //在展示对话框之前，获取所有角色列表
            const {data:res}=await this.$http.get('roles')
            if(res.meta.status!==200){
                return this.$message.error('获取角色列表失败')
            }
            this.rolesList=res.data
            // console.log(this.rolesList);
            this.setRoleDialogVisible=true
        },
        //点击按钮分配用户权限
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.info('请选择要分配的用户角色')
            }
            const {data:res}=await this.$http.put(`users/${this.userInfo.id}/role`,{
                rid:this.selectedRoleId
            })
            if(res.meta.status!==200){
                return this.$message.eror('更新角色失败')
            }
            this.$message.success('更新角色成功')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        //监听分配角色对话框关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId=''
            this.userInfo=[]
        }
    }
}
</script>
<style lang="less" scoped>

</style>
